2 notehead.cc -- implement Note_head
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
9 #include "note-head.hh"
13 #include <algorithm> // min, max
17 #include "directional-element-interface.hh"
18 #include "staff-symbol.hh"
22 #include "font-interface.hh"
24 #include "rhythmic-head.hh"
25 #include "staff-symbol-referencer.hh"
27 #include "output-def.hh"
30 clean up the mess left by ledger line handling.
33 internal_print (Grob *me, String *font_char)
35 SCM style = me->get_property ("style");
36 if (!scm_is_symbol (style))
38 style = ly_symbol2scm ("default");
41 SCM log = scm_int2num (Note_head::get_balltype (me));
42 SCM proc = me->get_property ("glyph-name-procedure");
44 String suffix = to_string (min (robust_scm2int (me->get_property ("duration-log"), 2), 2));
45 if (style != ly_symbol2scm ("default")
46 && ly_is_procedure (proc))
47 suffix = ly_scm2string (scm_call_2 (proc, log, style));
49 Font_metric *fm = Font_interface::get_default_font (me);
51 String idx = "noteheads.s" + suffix;
53 Stencil out = fm->find_by_name (idx);
56 String prefix = "noteheads.";
57 Grob *stem = unsmob_grob (me->get_object ("stem"));
58 Direction stem_dir = stem ? get_grob_direction (stem) : CENTER;
60 if (stem_dir == CENTER)
61 programming_error ("must have stem dir for note head");
62 String idx = prefix + ((stem_dir == UP) ? "u" : "d") + suffix;
63 out = fm->find_by_name (idx);
68 me->warning (_f ("note head `%s' not found", idx.to_str0 ()));
78 MAKE_SCHEME_CALLBACK (Note_head, print, 1);
80 Note_head::print (SCM smob)
82 Grob *me = unsmob_grob (smob);
85 return internal_print (me, &idx).smobbed_copy ();
89 Note_head::stem_attachment_coordinate (Grob *me, Axis a)
91 SCM brewer = me->get_property ("print-function");
92 Font_metric *fm = Font_interface::get_default_font (me);
94 if (brewer == Note_head::print_proc)
97 internal_print (me, &key);
99 int k = fm->name_to_index (key);
102 Box b = fm->get_indexed_char (k);
103 Offset wxwy = fm->attachment_point (key);
106 return 2 * (wxwy[a] - v.center ()) / v.length ();
113 SCM v = me->get_property ("stem-attachment-function");
114 if (!ly_is_procedure (v))
117 SCM result = scm_call_2 (v, me->self_scm (), scm_int2num (a));
118 if (!scm_is_pair (result))
121 result = (a == X_AXIS) ? scm_car (result) : scm_cdr (result);
123 return robust_scm2double (result, 0);
127 Note_head::get_balltype (Grob *me)
129 SCM s = me->get_property ("duration-log");
130 return scm_is_number (s) ? min (scm_to_int (s), 2) : 0;
133 ADD_INTERFACE (Note_head, "note-head-interface",
135 "note-names glyph-name-procedure accidental-grob style stem-attachment-function");